"Look, I speak ill of their negotiating abilities, I speak ill of certain things they make mistakes, but I want to tell you, I thought that term, used by the governor, was a disgrace and he shouldn't have used it," Trump said. "I thought it was very demeaning to the Republican Party."

Trump added that "'stupid' is now going to be part of the vocabulary for Democrats" and said he believed Jindal had made a "horrible" mistake.

Jindal's comments came last month during a meeting of the Republican National Committee.

“We’ve got to stop being the stupid party. It’s time for a new Republican Party that talks like adults,” Jindal said. “We had a number of Republicans damage the brand this year with offensive and bizarre comments. I’m here to say we’ve had enough of that.”